Filling bag with good thermal insulation and anti-collision performance and manufacturing method thereof

ABSTRACT

A filling bag with good thermal insulation and anti-collision performance and a manufacturing method thereof. The filling bag includes a sealed bag body and a filling tube head, and the sealed bag body includes a substrate layer and at least one thin film layer. At least one side of the substrate layer is provided with a mesh adhesive layer, and the thin film layer is compounded with the substrate layer through the mesh adhesive layer, so that a plurality of bubble cavities are formed between the substrate layer and the thin film layer. The bubble cavities are filled with gas. The thin film layer is compounded on the side of the sealed bag body to form a layer with dense bubble cavities filled with gas, a gas insulation interlayer is formed on the side of the sealed bag body, which has good thermal insulation effect.

CROSS REFERENCE TO THE RELATED APPLICATIONS

This application is the national phase entry of International Application No. PCT/CN2018/080237, filed on Mar. 23, 2018, which is based upon and claims priority to Chinese Patent Application No. 201710716510.2, filed on Aug. 21, 2017, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to a filling bag, in particular to a filling bag with good thermal insulation and anti-collision performance and manufacturing method thereof.

BACKGROUND

Filling bags are generally used for filling liquid food. Many liquid foods need thermal insulation during transportation. Otherwise, the temperature of liquid food will rise or fall, resulting in deterioration or loss of original taste of liquid food, such as yogurt, cold drink, hot coffee, hot milk tea, etc. However, the current filling bags have no thermal insulation performance.

In order to solve the problem of the thermal insulation of liquid food, in current, the filling bag filled with liquid food is usually placed in a bulky thermal insulation box for transportation, which is very inconvenient.

Some technical solutions are to directly compound a layer of thermal insulation film on the inner wall of the filling bag. Its thermal insulation effect is still poor though the thermal insulation performance has been improved.

In addition, as the filling bag generally has no anti-collision performance, it is easy to be squeezed or damaged by collision, resulting in the leakage of the liquid filled inside, so as to cause waste and environmental pollution.

SUMMARY

The technical problem to be solved by the present disclosure is to provide a filling bag with good thermal insulation and anti-collision performance and a manufacturing method thereof. The filling bag has good thermal insulation effect and anti-collision performance with a simple structure, which has a low manufacturing cost. The technical solution adopted is as follows:

A filling bag with good thermal insulation and anti-collision performance, including a sealed bag body and a filling tube head, wherein, the filling tube head is provided on a top of the sealed bag body, the sealed bag body comprises a substrate layer and at least one thin film layer; at least one side of the substrate layer is provided with a mesh adhesive layer, and the at least one thin film layer is compounded with the substrate layer through the mesh adhesive layer, so that a plurality of bubble cavities are formed between the substrate layer and the at least one thin film layer; and the plurality of bubble cavities are filled with a gas or foaming agent.

The substrate layer can be thick PP, PE and other plastic sheets, and the thin film layer can be thin PP, PE plastic films.

Because the thin film layer is compounded on the side of the sealed bag body through the mesh adhesive layer to form a layer with dense bubble cavities filled with gas, a gas insulation interlayer is formed on the side of the sealed bag body, which has good insulation effect. The gas insulation interlayer has good shock absorption and anti-collision performance at the same time, and the gas insulation interlayer is composed of the mesh adhesive layer compounded with the thin film layer, with high flatness, simple structure and low production cost, which can be widely used.

As a preferred embodiment of the present disclosure, the sealed bag body is a stand up pouch.

As a preferred embodiment of the present disclosure, a lower portion of the sealed bag body is provided with a liquid outlet tap.

As a preferred embodiment of the present disclosure, the top of the sealed bag body is provided with a handle.

As a preferred embodiment of the present disclosure, the mesh adhesive layer is composed of a plurality of sealed adhesive rings evenly arranged, and the bubble cavities are sealed with a foaming agent. Carbonates can be used as foaming agent. Carbonates are inorganic foaming agent, and inorganic foaming agent can release more gases without pollution. The carbonates are preferably calcium carbonate, magnesium carbonate or sodium bicarbonate, wherein sodium bicarbonate is a white powder with a specific gravity of 2.16, decomposition temperature of about 100-140° C., and sodium bicarbonate will release CO₂ gas after decomposition. Through the sealed adhesive rings of the mesh adhesive layer, a plurality of sealed bubble cavities are formed respectively, and the foaming agent is sealed. The foaming agent releases gas by means of the heating treatment, so that the bubble cavities are filled with gas, and it is more convenient to use which not be required inflation when used. And because the bubble cavities are mutually independent and closed, even if part of the bubble cavities is damaged, only local air leakage occurs, the bubble cavities still have a relatively good thermal insulation effect and anti-collision performance.

As a preferred embodiment of the present disclosure, the sealed bag body includes a bottom plate and at least three side plates, the bottom edge of each side plate and the edge of the bottom plate form a folding edge through the bottom sealed edge, the side edges of the adjacent two side plates are sealed together through the longitudinal sealed edge, and the top edge of each side plate is sealed together through the top sealed edge. The bottom sealed edge, the longitudinal sealed edge and the top sealed edge play the role of connection and shaping, so that the sealed bag body maintains a fixed shape and has better structural stability than the general folding edge.

As one embodiment of the mesh adhesive layer of the present disclosure, the mesh adhesive layer is composed of a plurality of semi-sealed adhesive rings evenly arranged, a gap is arranged between two adjacent semi-sealed adhesive rings, and the sealed bag body is provided with an inflation valve. The mesh adhesive layer is composed of a plurality of semi-sealed adhesive rings evenly arranged, and the semi-sealed adhesive rings of the mesh adhesive layer form a plurality of communicated bubble cavities. The gas is filled into each bubble cavity through the inflation valve to form a gas insulation interlayer without filling the foaming agent, reducing the production process, thereby the manufacturing cost is further reduced.

As a preferred embodiment of the present disclosure, the sealed bag body comprises a bottom plate and at least three side plates, the bottom edge of each side plate and the edge of the bottom plate form a folding edge through the bottom sealed edge, the sides of the adjacent two side plates are sealed together through the longitudinal sealed edge, the top edge of each side plate is sealed together through the top sealed edge, and the sealed edges processed by the bottom sealed edge and the longitudinal sealed edge are provided with air holes which communicate with the bubble cavities, respectively; and the inflation valve is arranged on the bottom plate or the side plate. The bottom sealed edge, the longitudinal sealed edge and the top sealed edge play the role of connection and shaping, so that the sealed bag body maintains a fixed shape and has better structural stability than the general folding edge. And the air holes are arranged on the sealed edges processed by the bottom sealed edge and the longitudinal sealed edge to make the bubble cavities on each side plate and bottom plate communicated with each other, and an inflation valve is arranged to complete the inflation of the whole sealed bag body. The inflation valve described above is a film inflation strip. The film inflation strip is a one-way inflation valve with simple structure and low cost, belonging to the prior art, which will not be described in detail here for brevity.

The shaped sealed edge described above can be formed by heat sealing.

The disclosure also discloses a method for manufacturing a filling bag with good thermal insulation and anti-collision performance, including the following steps:

(1) printing one layer of a mesh adhesive layer on one side of the substrate layer, wherein the mesh adhesive layer is composed of a plurality of semi-sealed adhesive rings evenly arranged, and a gap is arranged between two adjacent semi-sealed adhesive rings;

(2) compounding a thin film layer on the substrate layer by the mesh adhesive layer to form a composite layer, and a plurality of bubble cavities are formed between the substrate layer and the thin film layer;

(3) tailoring the composite layer according to a unfold plane view of the filling bag, and pre-punching a filling hole and a liquid outlet hole at corresponding position;

(4) folding the composite layer in half, and placing a film inflation strip in the folded composite layer, then heat sealing to form a bottom sealed edge, a longitudinal sealed edge and a top sealed edge, wherein each of the bottom sealed edge, longitudinal sealed edge reserves space to form air holes, air flows between bubble cavities through the air holes; and the film inflation strip communicates with the bubble cavities;

(5) heat sealing the filling tube head in the filling hole, heat sealing the liquid outlet tap in the liquid outlet hole, respectively.

The disclosure also discloses another method for manufacturing a filling bag with good thermal insulation and anti-collision performance, including the following steps:

(1) printing a mesh adhesive layer on one side of the substrate layer, wherein the mesh adhesive layer is composed of a plurality of sealed adhesive rings evenly arranged;

(2) filling each sealed adhesive ring of the mesh adhesive layer with an appropriate amount of foaming agent;

(3) compounding a thin film layer on the substrate layer by a mesh adhesive layer to form a composite layer, and a plurality of bubble cavities are formed between the substrate layer and the thin film layer, and each bubble cavity seals the corresponding foaming agent;

(4) heating the foaming agent to release gas to fill each bubble cavity;

(5) tailoring the composite layer according to a unfold plane view of the filling bag, and pre-punching a filling hole and a liquid outlet hole at corresponding position;

(6) folding the composite layer in half, then heat sealing to form a bottom sealed edge, a longitudinal sealed edge and a top sealed edge;

(7) heat sealing the filling tube head in the filling hole, heat sealing the liquid outlet tap in the liquid outlet hole, respectively.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural diagram of embodiment 1 according to the present disclosure, mainly showing the structure of the filling bag and the arrangement of the mesh adhesive layer;

FIG. 2 is a cross-sectional view of the sealed bag body in FIG. 1;

FIG. 3 is a schematic diagram showing a sealed bag body with two layers of gas insulation interlayer;

FIG. 4 is the structural diagram of embodiment 2 according to the present disclosure, mainly showing the structure of the filling bag and the arrangement of the mesh adhesive layer;

FIG. 5 is a cross-sectional view of the sealed bag body in FIG. 4.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present disclosure will be further description in detailed in combination with the accompanying drawings and the preferred embodiments as below.

Embodiment 1

As shown in FIG. 1 and FIG. 2, the filling bag with good thermal insulation and anti-collision performance includes a sealed bag body 1 and a filling tube head 2. The filling tube head 2 is provided on the top of the sealed bag body 1, the sealed bag body 1 is a stand up pouch. The lower portion of the sealed bag body 1 is provided with a liquid outlet tap 3. The top of the sealed bag body 1 is provided with a handle 4. The side wall 1 of the sealed bag body includes a substrate layer 5 and a thin film layer 6. The side of the substrate layer 5 is provided with a mesh adhesive layer 7, and the thin film layer 6 is compounded with the substrate layer 5 through the mesh adhesive layer 7, so that a plurality of bubble cavities 8 are formed between the substrate layer 5 and the thin film layer 6, and the bubble cavities 8 are filled with gas.

The mesh adhesive layer 7 is composed of a plurality of semi-sealed adhesive rings 701 evenly arranged, a gap 702 is arranged between the two adjacent semi-sealed adhesive rings 701, and a film inflation strip 9 is arranged on the sealed bag body 1.

The sealed bag body 1 described above includes a bottom plate 101 and four side plates 102. The bottom edge of each side plate 102 and the edge of the bottom plate 101 form a folding edge through the bottom sealed edge 103. The sides of the adjacent two side plates 102 are sealed together through the longitudinal sealed edge 104. The top edge of each side plate 102 is sealed together through the top sealed edge 105. The bottom sealed edge 103 and the longitudinal sealed edge 104 of each side plate 102 are provided with an air hole 106 communicated with the bubble cavity 8, respectively. And the film inflation strip 9 is arranged on the bottom plate 101 or the side plate 102.

The filling tube head 2 can be arranged on the top sealed edge 105 or on the upper portion of one of the side plates 102.

The substrate layer 5 can be made of thick PP, PE and other plastic sheets, and the thin film layer 6 can be made of thin PP, PE plastic films.

Because the side of the sealed bag body 1 is compounded with a thin film layer 6 through the mesh adhesive layer 7, a dense bubble cavity 8 is formed. And the gas is inflated through the film inflation strip 9, and enters into each bubble cavity 8 through each air hole 106 and gap 702, thus forming a gas insulation interlayer 10 on the side of the sealed bag body 1, so that the filling bag has a good insulation effect. At the same time, the gas insulation interlayer 10 has good shock absorption and anti-collision performance. Besides, the gas insulation interlayer 10 is composed of a mesh adhesive layer 7 compounded with a thin film layer 6, which has high flatness, simple structure, low production cost, and can be widely used.

As shown in FIG. 3, in a specific solution, both sides of the substrate layer 5 are compounded with a thin film layer 6 through a mesh adhesive layer 7, so that a gas insulation interlayer 10 is formed on both sides of the inner and outer sides of the sealed bag body 1.

Referring to FIG. 1 and FIG. 2, the manufacturing method of the filling bag with better thermal insulation and anti-collision performance includes the following steps:

(1) printing one layer of a mesh adhesive layer 7 on one side of the substrate layer 5, wherein the mesh adhesive layer 7 is composed of a plurality of semi-sealed adhesive rings 701 evenly arranged, and a gap 702 is arranged between two adjacent semi-sealed adhesive rings 701;

(2) compounding a thin film layer 6 on the substrate layer 5 by the mesh adhesive layer 7 to form a composite layer, and a plurality of bubble cavities 8 are formed among the substrate layer 5, the mesh adhesive layer 7 and the thin film layer 6;

(3) tailoring the composite layer according to a unfold plane view of the filling bag, and pre-punching a filling hole and a liquid outlet hole at corresponding position;

(4) folding the composite layer in half, and placing a film inflation strip in the folded composite layer, then heat sealing to form a bottom sealed edge 103, a longitudinal sealed edge 104 and a top sealed edge 105, wherein each of the bottom sealed edge 103, longitudinal sealed edge 104 reserves space to form air holes 106, air flows between bubble cavities 8 through the air holes 106; and the film inflation strip 9 communicates with the bubble cavities 8;

(5) heat sealing the filling tube head 2 in the filling hole, heat sealing the liquid outlet tap 3 in the liquid outlet hole, respectively.

Embodiment 2

As shown in FIG. 4 and FIG. 5, in the case that other parts are the same as embodiment 1, the difference is only that the sealed bag body 1 includes a bottom plate 111, a top plate 112 and two side plates 113. The sides of the two side plates 113 are sealed together by the longitudinal sealed edge 114 to form a cylinder, the bottom edges of the two side plates 113 and the edges of the bottom plate 111 form a folding edge by the bottom sealed edge 115, and each side of the top edge of the plate 113 and the edge of the top plate 112 are sealed together by the top sealed edge 116. The mesh adhesive layer 7 is composed of a plurality of sealed adhesive rings 711 evenly arranged, and a foaming agent is sealed in the bubble cavity 8. A plurality of sealed bubble cavities 8 are respectively formed through the sealed adhesive ring 711 of the mesh adhesive layer 7, and the foaming agent is sealed. Through the heating treatment, the foaming agent releases the gas, so that the bubble cavity 8 is filled with the gas, not requiring inflation when use, which is more convenient to use. And the bubble cavity 8 is independent and closed to each other, even if part of the bubble cavity 8 is damaged, only local air leakage occurs, the bubble cavity 8 is still sealed and has good thermal insulation effect.

The manufacturing method of the filling bag with good thermal insulation and anti-collision performance includes the following steps:

(1) printing a mesh adhesive layer 7 on one side of the substrate layer 5, wherein the mesh adhesive layer 7 is composed of a plurality of sealed adhesive rings 711 evenly arranged;

(2) filling each sealed adhesive ring 711 of the mesh adhesive layer 7 with an appropriate amount of foaming agent;

(3) compounding a thin film layer 6 on the substrate layer 5 by the mesh adhesive layer 7 to form a composite layer, and a plurality of bubble cavities 8 are formed among the substrate layer 5, the mesh adhesive layer 7 and the thin film layer 6, and each bubble cavity 8 seals the corresponding foaming agent;

(4) heating the foaming agent to release gas to fill each bubble cavity 8;

(5) tailoring the composite layer according to a unfold plane view of the filling bag, and pre-punching a filling hole and a liquid outlet hole at corresponding position;

(6) folding the composite layer in half, then heat sealing to form a bottom sealed edge 114, a longitudinal sealed edge 115 and a top sealed edge 116;

(7) heat sealing the filling tube head 2 in the filling hole, heat sealing the liquid outlet tap 3 in the liquid outlet hole, respectively.

The above description merely relates to embodiments of the present disclosure, and is not intended to limit the design of the present disclosure. Any equivalent changes made according to key points of the design of the present disclosure will fall within the scope of protection of the present disclosure. 

What is claimed is:
 1. A filling bag with good thermal insulation and anti-collision performance, comprising a sealed bag body and a filling tube head, wherein, the filling tube head is provided on a top of the sealed bag body, the sealed bag body comprises a substrate layer and at least one thin film layer; at least one side of the substrate layer is provided with a mesh adhesive layer, and the at least one thin film layer is compounded with the substrate layer through the mesh adhesive layer, so that a plurality of bubble cavities are formed between the substrate layer and the at least one thin film layer; and the plurality of bubble cavities are filled with a gas.
 2. The filling bag according to claim 1, wherein the sealed bag body is a stand up pouch.
 3. The filling bag according to claim 1, wherein a lower portion of the sealed bag body is provided with a liquid outlet tap.
 4. The filling bag according to claim 1, wherein the top of the sealed bag body is provided with a handle.
 5. The filling bag according to claim 1, wherein the mesh adhesive layer is composed of a plurality of sealed adhesive rings evenly arranged, and the at least one thin film layer is compounded with the substrate layer through the plurality of sealed adhesive rings, so that a plurality of sealed bubble cavities are formed between the substrate layer and the at least one thin film layer, and each of the plurality of sealed bubble cavities is sealed with a foaming agent.
 6. The filling bag according to claim 5, wherein the sealed bag body comprises a bottom plate and at least three side plates, a bottom edge of each side plate of the at least three side plates and an edge of the bottom plate form a folding edge through a bottom sealed edge, side edges of two side plates adjacent to each other of the at least three side plates are sealed together through a longitudinal sealed edge, and a top edge of the each side plate is sealed together through a top sealed edge.
 7. The filling bag according to claim 1, wherein the mesh adhesive layer is composed of a plurality of semi-sealed adhesive rings evenly arranged, a gap is arranged between two adjacent semi-sealed adhesive rings, the at least one thin film layer is compounded with the substrate layer through the plurality of semi-sealed adhesive rings, so that a plurality of bubble cavities with the gap are formed between the substrate layer and the at least one thin film layer, the gas flows between the plurality of bubble cavities with the gap, and the sealed bag body is provided with an inflation valve.
 8. The filling bag according to claim 7, wherein the sealed bag body comprises a bottom plate and at least three side plates, a bottom edge of each side plate of the at least three side plates and an edge of the bottom plate form a folding edge through a bottom sealed edge, side edges of two side plates adjacent to each other of the at least three side plates are sealed together through a longitudinal sealed edge, a top edge of the each side plate is sealed together through a top sealed edge, and each of the bottom sealed edge and the longitudinal sealed edge is provided with a plurality of air holes, wherein the plurality of air holes communicate with the plurality of bubble cavities with the gap, respectively; and the inflation valve is arranged on the bottom plate or the at least three side plates.
 9. A method for manufacturing a filling bag with good thermal insulation and anti-collision performance, comprising the following steps: (1) printing one layer of a mesh adhesive layer on one side of a substrate layer, wherein the mesh adhesive layer is composed of a plurality of semi-sealed adhesive rings evenly arranged, and a gap is arranged between two adjacent semi-sealed adhesive rings; (2) compounding a thin film layer on the substrate layer by the mesh adhesive layer to form a composite layer, wherein a plurality of bubble cavities with the gap are formed between the substrate layer and the thin film layer; (3) tailoring the composite layer according to a unfold plane view of the filling bag, and pre-punching a filling hole and a liquid outlet hole at a corresponding position on the composite layer; (4) folding the composite layer in half, and placing a film inflation strip in the composite layer, then performing a heat sealing on the composite layer to form a bottom sealed edge, a longitudinal sealed edge and a top sealed edge, wherein each of the bottom sealed edge and the longitudinal sealed edge reserves a space to form a plurality of air holes, an air flows between the plurality of bubble cavities with the gap through the plurality of air holes; and the film inflation strip communicates with the plurality of bubble cavities with the gap; (5) heat sealing a filling tube head in the filling hole, and heat sealing a liquid outlet tap in the liquid outlet hole, respectively.
 10. A method for manufacturing a filling bag with good thermal insulation and anti-collision performance, comprising the following steps: (1) printing a mesh adhesive layer on one side of a substrate layer, wherein the mesh adhesive layer is composed of a plurality of sealed adhesive rings evenly arranged; (2) filling each sealed adhesive ring of the plurality of sealed adhesive rings of the mesh adhesive layer with an appropriate amount of a foaming agent; (3) compounding a thin film layer on the substrate layer by the mesh adhesive layer to form a composite layer, wherein, a plurality of bubble cavities are formed between the substrate layer and the thin film layer, and each bubble cavity of the plurality of bubble cavities correspondingly seals the foaming agent; (4) heating the foaming agent to release a gas to fill the each bubble cavity; (5) tailoring the composite layer according to a unfold plane view of the filling bag, and pre-punching a filling hole and a liquid outlet hole at a corresponding position on the composite layer; (6) folding the composite layer in half, then performing a heat sealing on the composite layer to form a bottom sealed edge, a longitudinal sealed edge and a top sealed edge; (7) heat sealing a filling tube head in the filling hole, and heat sealing a liquid outlet tap in the liquid outlet hole, respectively.
 11. The filling bag according to claim 2, wherein the mesh adhesive layer is composed of a plurality of sealed adhesive rings evenly arranged, and the at least one thin film layer is compounded with the substrate layer through the plurality of sealed adhesive rings, so that a plurality of sealed bubble cavities are formed between the substrate layer and the at least one thin film layer, and each of the plurality of sealed bubble cavities is sealed with a foaming agent.
 12. The filling bag according to claim 3, wherein the mesh adhesive layer is composed of a plurality of sealed adhesive rings evenly arranged, and the at least one thin film layer is compounded with the substrate layer through the plurality of sealed adhesive rings, so that a plurality of sealed bubble cavities are formed between the substrate layer and the at least one thin film layer, and each of the plurality of sealed bubble cavities is sealed with a foaming agent.
 13. The filling bag according to claim 4, wherein the mesh adhesive layer is composed of a plurality of sealed adhesive rings evenly arranged, and the at least one thin film layer is compounded with the substrate layer through the plurality of sealed adhesive rings, so that a plurality of sealed bubble cavities are formed between the substrate layer and the at least one thin film layer, and each of the plurality of sealed bubble cavities is sealed with a foaming agent.
 14. The filling bag according to claim 2, wherein the mesh adhesive layer is composed of a plurality of semi-sealed adhesive rings evenly arranged, a gap is arranged between two adjacent semi-sealed adhesive rings, the at least one thin film layer is compounded with the substrate layer through the plurality of semi-sealed adhesive rings, so that a plurality of bubble cavities with the gap are formed between the substrate layer and the at least one thin film layer, the gas flows between the plurality of bubble cavities with the gap, and the sealed bag body is provided with an inflation valve.
 15. The filling bag according to claim 3, wherein the mesh adhesive layer is composed of a plurality of semi-sealed adhesive rings evenly arranged, a gap is arranged between two adjacent semi-sealed adhesive rings, the at least one thin film layer is compounded with the substrate layer through the plurality of semi-sealed adhesive rings, so that a plurality of bubble cavities with the gap are formed between the substrate layer and the at least one thin film layer, the gas flows between the plurality of bubble cavities with the gap, and the sealed bag body is provided with an inflation valve.
 16. The filling bag according to claim 4, wherein the mesh adhesive layer is composed of a plurality of semi-sealed adhesive rings evenly arranged, a gap is arranged between two adjacent semi-sealed adhesive rings, the at least one thin film layer is compounded with the substrate layer through the plurality of semi-sealed adhesive rings, so that a plurality of bubble cavities with the gap are formed between the substrate layer and the at least one thin film layer, the gas flows between the plurality of bubble cavities with the gap, and the sealed bag body is provided with an inflation valve. 